diff --git a/server/plugins-available/apache2_plugin.inc.php b/server/plugins-available/apache2_plugin.inc.php
index e3b8bfe695d86d5dfcf38a2c311ed41b3634539d..ec92e699bba74ab592869e5e6b473d945ae5f4ac 100644
--- a/server/plugins-available/apache2_plugin.inc.php
+++ b/server/plugins-available/apache2_plugin.inc.php
@@ -884,7 +884,7 @@ class apache2_plugin {
 			}
             
           // get the primitive folder for document_root and the filesystem, will need it later.
-          $df_output=explode(" ", exec("df -T " . $data['new']['document_root'] . "|awk 'END{print \$2,\$NF}'"));
+          $df_output=explode(" ", exec("df -T $document_root|awk 'END{print \$2,\$NF}'"));
           $file_system = $df_output[0];
           $primitive_root = $df_output[1];